Cupola.



, PATENTED MAY 8, 1906. J. H. KOONS.

2 SHEETS-SHEET l.

. ATTORNEYS No. 820,210.- 4 APATENTED MAY s, 1900 1 f f J. H. KooN-s.

0UP0LA.

APPLICATION FILED 00,010.22. 1004. 'RENEWBD sEP'r.1 1.1905. y 2 SHEETS-SHEET 2 "will,

ATTORNEYS iran sfrariis PATENT oFFioE.

JoHN ii. irooiis, or nELrHos; omo.

y CUPQLA.

lApplication illell March 22, 1904.

l ers for cupolas or Jf'uina'ces in which ydroearbon 'oil is used as the fuel, the obiec being to provide a device of this character y meansof which the oil mixed with 'air o'r steam will be lcaused to enter the cupola under a high degree ofl heat, resulting man 'intense and practically even heat from an economical supply of burning fuel.

ven'tion and then p'oint out the novel features in the appended claims.

`Reference is to be had4 to the accompany- 'ing drawings, forming a part of this specification, inwhich similar characters of reference indicate corresponding parts in both the figures.

, Figure'l is an elevation, partl in section, of a cupola with a heater embo ying my invention connected therewith; andFig. 2 is a plan on the line 2 2 of Fig. l with the top of the cupola removed. v,

Reierring'to the drawings, 5 designates a cupola practically of the usual construction 4and at the lower portion of which are twyerboxes 6. Leadingdownward through the of the cupola is an air-pipe 7, through to which lowpressure or atmospheric air passes to branch pipes 8 at the lower portion of the heater. Leading through the low-pressure pi e ,7 atthe top is a high-pressure pipe 9, w 'ch 'is connected with/ a suitable compressor, and at its lower 'en d this high-pressure pipe communicates with brano pipes 10 below the low-pressure branch pi es 8. At the upper portion of the heater an over A. the pipes 8 are low-pressure pipes 11, communicating with the pipes 8 through tubes 12,

. and these pipes 11 extend outward through the cuiola-wall and connect with pipes 13,

which vead downward through oil tanks or reservoirs 14 and communicate with the twye1'-boxes. y

From the highpressure pipes lOtubes lead upward and communicate with highpressure ipes 16, whichq pass downward through t e low-pressure pipes 13 and. communicate with the twyers 24.v

lt will be noted that the high-pressure specificati@ of Letters raient. l

will describe a cupola embodyingdny in.l

` Y Patented my 8,1906. l

atnewei september i4, 1905@ semi iro. 278,481.

pressure pipes. From the highpressure pipes tubes 17 lead into the upper portion of the oil-tanks, and these tubes 17 are provided with valves 18 when air or steam is use d to give pressure in the oil-tank, as it will be understood that-either compressed air or steam may be used with equally good results.

` Leading from the lower portion of each oiltank into .the'twyer beneath it islan oil-su ply pipe 19, provided with a valve 20. t the upper portion of each oil-tank is an oilsupply tube 21, and at the lower portion is a tap 22 for drawing off sediment that may accumulate in the tank,and extended upward through each oil-tank is a steam-pi e 23, provided with erforations through w 'ch steam 'passes to mingle with the oil before discharging into the small tubes 25 in the twyers 24. This mined oil and air or steam passes into the twyers 24 and mingles at the outlet ofthe twyers with the high and low pressure air or steam.

It will be seen in the construction of my i heater the air will be thoroughly heated, and

hot air or superheated steam passing through the pipes surrounded by the oil-tanks will cause the oil to be heated, and by thus heating the oil and air or steam an intense volurne of heat will be maintained in the furnace.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination with a cupola and twyer-boxes communicating therewith, of a iwith t e twyer-boxes, oil-tanks communicating with-the twyer-boxes, and means for he ai ing the oil therein.

2. The combination With a cupola and twyer-boxes arranged at the lower portion thereof, of a heater comprising low-pressure air-pipes arran ed in the heater and communieating with t e twyer-boxes, high-pressure air-pipes arranged in the heater and communicatin with the tWyer-boxes, and oil-su ply ta surroundin the air-pipes at -t outer side of the cupola.

3. lThe combination with a cupola and twyer-boxes arranged at the lower portion thereof., of a heater com rising a low-pressure air-pi. e leading throu the to of the cuoraiich pipes wit which .t e lower end pipes are considerably smaller than the-low- 'heater com rising low-pressure pipes ar- IIO AIS

, said pipes". communicating vboxes; oil-tanks surrounding Awhich vthe lower en the outer side of said low-pressure pipe communicates, branch pipes at the upper portion of the heater, pipes connecting the oWer and up er branch pipes, a low-pressure pi e leading iiom the up er branch pipes to t e twyerboxes, a hig -pressure p1 e leading through the lowpressure ipe, ranch pipes with ofthe high-pressure ipe communicates, low-pressure p1 es lea ing from said branches through the IEW-pressure pipes and communicating with they twyer LI oxes, and oil-`tanks surrounding the pipes at eatin with the twyers.

4. he combination with a cupola and twyer-boxes at the lower portion thereof, of a heater comprisinglow-pressure air-pipes arranged in the cupola, hlgh-pressure air-pipes ofthe cupola and communihavmg portions arranged in the .heater and portions extended through the low-pressure pipes at the lower side of the cupola, all of with the twyerthe pipes at the outer side of the cupola,an air-supply pipes leadingI from the high-pressure pipes into the upper portions of the tanks.

, outer side of the cupola and `prisiner an oil-sup y the o1l 1n the tan and sures independently nicating with the twyer-boxes, high-prcssure air-pipesv passing through the :first-named pipes and communicatingr with thm` twyernoxes, oil-.tanks surrounding the lpipes at the communicating with the twyer-boxes, valve-controlled tubes leading from the high-pressure pipes into thc tanks at the upper portion, and steam-supir ply pipes leading into the tanks.

6. A heating ap Jaratus for a cu mia, comly tank, means or heating means for supplying air to the burners under high and low presone of the other. In testimony whereof l have signed my name to this 'speciiication in the presenceot' two subscribing witnesses.

JOHN H. KOONS. Witnesses:

GEO. LY Fisnnn, HENRY METZGER. 

